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llvm-mirror/lib/Target/AMDGPU/SIDefines.h
Nicolai Haehnle 1212f85a97 AMDGPU: Stay in WQM for non-intrinsic stores 
Summary:
Two types of stores are possible in pixel shaders: stores to memory that are
explicitly requested at the API level, and stores that are an implementation
detail of register spilling or lowering of arrays.

For the first kind of store, we must ensure that helper pixels have no effect
and hence WQM must be disabled. The second kind of store must always be
executed, because the written value may be loaded again in a way that is
relevant for helper pixels as well -- and there are no externally visible
effects anyway.

This is a candidate for the 3.9 release branch.

Reviewers: arsenm, tstellarAMD, mareko

Subscribers: arsenm, kzhuravl, llvm-commits

Differential Revision: https://reviews.llvm.org/D22675

llvm-svn: 277504
2016-08-02 19:31:14 +00:00

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//===-- SIDefines.h - SI Helper Macros ----------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
/// \file
//===----------------------------------------------------------------------===//
#include "llvm/MC/MCInstrDesc.h"
#ifndef LLVM_LIB_TARGET_AMDGPU_SIDEFINES_H
#define LLVM_LIB_TARGET_AMDGPU_SIDEFINES_H
namespace SIInstrFlags {
// This needs to be kept in sync with the field bits in InstSI.
enum {
SALU = 1 << 3,
VALU = 1 << 4,
SOP1 = 1 << 5,
SOP2 = 1 << 6,
SOPC = 1 << 7,
SOPK = 1 << 8,
SOPP = 1 << 9,
VOP1 = 1 << 10,
VOP2 = 1 << 11,
VOP3 = 1 << 12,
VOPC = 1 << 13,
SDWA = 1 << 14,
DPP = 1 << 15,
MUBUF = 1 << 16,
MTBUF = 1 << 17,
SMRD = 1 << 18,
DS = 1 << 19,
MIMG = 1 << 20,
FLAT = 1 << 21,
WQM = 1 << 22,
VGPRSpill = 1 << 23,
VOPAsmPrefer32Bit = 1 << 24,
Gather4 = 1 << 25,
DisableWQM = 1 << 26
};
}
namespace llvm {
namespace AMDGPU {
enum OperandType {
/// Operand with register or 32-bit immediate
OPERAND_REG_IMM32 = MCOI::OPERAND_FIRST_TARGET,
/// Operand with register or inline constant
OPERAND_REG_INLINE_C,
/// Operand with 32-bit immediate that uses the constant bus. The standard
/// OPERAND_IMMEDIATE should be used for special immediates such as source
/// modifiers.
OPERAND_KIMM32
};
}
}
namespace SIInstrFlags {
enum Flags {
// First 4 bits are the instruction encoding
VM_CNT = 1 << 0,
EXP_CNT = 1 << 1,
LGKM_CNT = 1 << 2
};
// v_cmp_class_* etc. use a 10-bit mask for what operation is checked.
// The result is true if any of these tests are true.
enum ClassFlags {
S_NAN = 1 << 0, // Signaling NaN
Q_NAN = 1 << 1, // Quiet NaN
N_INFINITY = 1 << 2, // Negative infinity
N_NORMAL = 1 << 3, // Negative normal
N_SUBNORMAL = 1 << 4, // Negative subnormal
N_ZERO = 1 << 5, // Negative zero
P_ZERO = 1 << 6, // Positive zero
P_SUBNORMAL = 1 << 7, // Positive subnormal
P_NORMAL = 1 << 8, // Positive normal
P_INFINITY = 1 << 9 // Positive infinity
};
}
// Input operand modifiers bit-masks
// NEG and SEXT share same bit-mask because they can't be set simultaneously.
namespace SISrcMods {
enum {
NEG = 1 << 0, // Floating-point negate modifier
ABS = 1 << 1, // Floating-point absolute modifier
SEXT = 1 << 0 // Integer sign-extend modifier
};
}
namespace SIOutMods {
enum {
NONE = 0,
MUL2 = 1,
MUL4 = 2,
DIV2 = 3
};
}
namespace llvm {
namespace AMDGPU {
namespace EncValues { // Encoding values of enum9/8/7 operands
enum {
SGPR_MIN = 0,
SGPR_MAX = 101,
TTMP_MIN = 112,
TTMP_MAX = 123,
INLINE_INTEGER_C_MIN = 128,
INLINE_INTEGER_C_POSITIVE_MAX = 192, // 64
INLINE_INTEGER_C_MAX = 208,
INLINE_FLOATING_C_MIN = 240,
INLINE_FLOATING_C_MAX = 248,
LITERAL_CONST = 255,
VGPR_MIN = 256,
VGPR_MAX = 511
};
} // namespace EncValues
} // namespace AMDGPU
} // namespace llvm
namespace llvm {
namespace AMDGPU {
namespace SendMsg { // Encoding of SIMM16 used in s_sendmsg* insns.
enum Id { // Message ID, width(4) [3:0].
ID_UNKNOWN_ = -1,
ID_INTERRUPT = 1,
ID_GS,
ID_GS_DONE,
ID_SYSMSG = 15,
ID_GAPS_LAST_, // Indicate that sequence has gaps.
ID_GAPS_FIRST_ = ID_INTERRUPT,
ID_SHIFT_ = 0,
ID_WIDTH_ = 4,
ID_MASK_ = (((1 << ID_WIDTH_) - 1) << ID_SHIFT_)
};
enum Op { // Both GS and SYS operation IDs.
OP_UNKNOWN_ = -1,
OP_SHIFT_ = 4,
// width(2) [5:4]
OP_GS_NOP = 0,
OP_GS_CUT,
OP_GS_EMIT,
OP_GS_EMIT_CUT,
OP_GS_LAST_,
OP_GS_FIRST_ = OP_GS_NOP,
OP_GS_WIDTH_ = 2,
OP_GS_MASK_ = (((1 << OP_GS_WIDTH_) - 1) << OP_SHIFT_),
// width(3) [6:4]
OP_SYS_ECC_ERR_INTERRUPT = 1,
OP_SYS_REG_RD,
OP_SYS_HOST_TRAP_ACK,
OP_SYS_TTRACE_PC,
OP_SYS_LAST_,
OP_SYS_FIRST_ = OP_SYS_ECC_ERR_INTERRUPT,
OP_SYS_WIDTH_ = 3,
OP_SYS_MASK_ = (((1 << OP_SYS_WIDTH_) - 1) << OP_SHIFT_)
};
enum StreamId { // Stream ID, (2) [9:8].
STREAM_ID_DEFAULT_ = 0,
STREAM_ID_LAST_ = 4,
STREAM_ID_FIRST_ = STREAM_ID_DEFAULT_,
STREAM_ID_SHIFT_ = 8,
STREAM_ID_WIDTH_= 2,
STREAM_ID_MASK_ = (((1 << STREAM_ID_WIDTH_) - 1) << STREAM_ID_SHIFT_)
};
} // namespace SendMsg
namespace Hwreg { // Encoding of SIMM16 used in s_setreg/getreg* insns.
enum Id { // HwRegCode, (6) [5:0]
ID_UNKNOWN_ = -1,
ID_SYMBOLIC_FIRST_ = 1, // There are corresponding symbolic names defined.
ID_SYMBOLIC_LAST_ = 8,
ID_SHIFT_ = 0,
ID_WIDTH_ = 6,
ID_MASK_ = (((1 << ID_WIDTH_) - 1) << ID_SHIFT_)
};
enum Offset { // Offset, (5) [10:6]
OFFSET_DEFAULT_ = 0,
OFFSET_SHIFT_ = 6,
OFFSET_WIDTH_ = 5,
OFFSET_MASK_ = (((1 << OFFSET_WIDTH_) - 1) << OFFSET_SHIFT_)
};
enum WidthMinusOne { // WidthMinusOne, (5) [15:11]
WIDTH_M1_DEFAULT_ = 31,
WIDTH_M1_SHIFT_ = 11,
WIDTH_M1_WIDTH_ = 5,
WIDTH_M1_MASK_ = (((1 << WIDTH_M1_WIDTH_) - 1) << WIDTH_M1_SHIFT_)
};
} // namespace Hwreg
} // namespace AMDGPU
} // namespace llvm
#define R_00B028_SPI_SHADER_PGM_RSRC1_PS 0x00B028
#define R_00B02C_SPI_SHADER_PGM_RSRC2_PS 0x00B02C
#define S_00B02C_EXTRA_LDS_SIZE(x) (((x) & 0xFF) << 8)
#define R_00B128_SPI_SHADER_PGM_RSRC1_VS 0x00B128
#define R_00B228_SPI_SHADER_PGM_RSRC1_GS 0x00B228
#define R_00B848_COMPUTE_PGM_RSRC1 0x00B848
#define S_00B028_VGPRS(x) (((x) & 0x3F) << 0)
#define S_00B028_SGPRS(x) (((x) & 0x0F) << 6)
#define R_00B84C_COMPUTE_PGM_RSRC2 0x00B84C
#define S_00B84C_SCRATCH_EN(x) (((x) & 0x1) << 0)
#define G_00B84C_SCRATCH_EN(x) (((x) >> 0) & 0x1)
#define C_00B84C_SCRATCH_EN 0xFFFFFFFE
#define S_00B84C_USER_SGPR(x) (((x) & 0x1F) << 1)
#define G_00B84C_USER_SGPR(x) (((x) >> 1) & 0x1F)
#define C_00B84C_USER_SGPR 0xFFFFFFC1
#define S_00B84C_TGID_X_EN(x) (((x) & 0x1) << 7)
#define G_00B84C_TGID_X_EN(x) (((x) >> 7) & 0x1)
#define C_00B84C_TGID_X_EN 0xFFFFFF7F
#define S_00B84C_TGID_Y_EN(x) (((x) & 0x1) << 8)
#define G_00B84C_TGID_Y_EN(x) (((x) >> 8) & 0x1)
#define C_00B84C_TGID_Y_EN 0xFFFFFEFF
#define S_00B84C_TGID_Z_EN(x) (((x) & 0x1) << 9)
#define G_00B84C_TGID_Z_EN(x) (((x) >> 9) & 0x1)
#define C_00B84C_TGID_Z_EN 0xFFFFFDFF
#define S_00B84C_TG_SIZE_EN(x) (((x) & 0x1) << 10)
#define G_00B84C_TG_SIZE_EN(x) (((x) >> 10) & 0x1)
#define C_00B84C_TG_SIZE_EN 0xFFFFFBFF
#define S_00B84C_TIDIG_COMP_CNT(x) (((x) & 0x03) << 11)
#define G_00B84C_TIDIG_COMP_CNT(x) (((x) >> 11) & 0x03)
#define C_00B84C_TIDIG_COMP_CNT 0xFFFFE7FF
/* CIK */
#define S_00B84C_EXCP_EN_MSB(x) (((x) & 0x03) << 13)
#define G_00B84C_EXCP_EN_MSB(x) (((x) >> 13) & 0x03)
#define C_00B84C_EXCP_EN_MSB 0xFFFF9FFF
/* */
#define S_00B84C_LDS_SIZE(x) (((x) & 0x1FF) << 15)
#define G_00B84C_LDS_SIZE(x) (((x) >> 15) & 0x1FF)
#define C_00B84C_LDS_SIZE 0xFF007FFF
#define S_00B84C_EXCP_EN(x) (((x) & 0x7F) << 24)
#define G_00B84C_EXCP_EN(x) (((x) >> 24) & 0x7F)
#define C_00B84C_EXCP_EN
#define R_0286CC_SPI_PS_INPUT_ENA 0x0286CC
#define R_0286D0_SPI_PS_INPUT_ADDR 0x0286D0
#define R_00B848_COMPUTE_PGM_RSRC1 0x00B848
#define S_00B848_VGPRS(x) (((x) & 0x3F) << 0)
#define G_00B848_VGPRS(x) (((x) >> 0) & 0x3F)
#define C_00B848_VGPRS 0xFFFFFFC0
#define S_00B848_SGPRS(x) (((x) & 0x0F) << 6)
#define G_00B848_SGPRS(x) (((x) >> 6) & 0x0F)
#define C_00B848_SGPRS 0xFFFFFC3F
#define S_00B848_PRIORITY(x) (((x) & 0x03) << 10)
#define G_00B848_PRIORITY(x) (((x) >> 10) & 0x03)
#define C_00B848_PRIORITY 0xFFFFF3FF
#define S_00B848_FLOAT_MODE(x) (((x) & 0xFF) << 12)
#define G_00B848_FLOAT_MODE(x) (((x) >> 12) & 0xFF)
#define C_00B848_FLOAT_MODE 0xFFF00FFF
#define S_00B848_PRIV(x) (((x) & 0x1) << 20)
#define G_00B848_PRIV(x) (((x) >> 20) & 0x1)
#define C_00B848_PRIV 0xFFEFFFFF
#define S_00B848_DX10_CLAMP(x) (((x) & 0x1) << 21)
#define G_00B848_DX10_CLAMP(x) (((x) >> 21) & 0x1)
#define C_00B848_DX10_CLAMP 0xFFDFFFFF
#define S_00B848_DEBUG_MODE(x) (((x) & 0x1) << 22)
#define G_00B848_DEBUG_MODE(x) (((x) >> 22) & 0x1)
#define C_00B848_DEBUG_MODE 0xFFBFFFFF
#define S_00B848_IEEE_MODE(x) (((x) & 0x1) << 23)
#define G_00B848_IEEE_MODE(x) (((x) >> 23) & 0x1)
#define C_00B848_IEEE_MODE 0xFF7FFFFF
// Helpers for setting FLOAT_MODE
#define FP_ROUND_ROUND_TO_NEAREST 0
#define FP_ROUND_ROUND_TO_INF 1
#define FP_ROUND_ROUND_TO_NEGINF 2
#define FP_ROUND_ROUND_TO_ZERO 3
// Bits 3:0 control rounding mode. 1:0 control single precision, 3:2 double
// precision.
#define FP_ROUND_MODE_SP(x) ((x) & 0x3)
#define FP_ROUND_MODE_DP(x) (((x) & 0x3) << 2)
#define FP_DENORM_FLUSH_IN_FLUSH_OUT 0
#define FP_DENORM_FLUSH_OUT 1
#define FP_DENORM_FLUSH_IN 2
#define FP_DENORM_FLUSH_NONE 3
// Bits 7:4 control denormal handling. 5:4 control single precision, 6:7 double
// precision.
#define FP_DENORM_MODE_SP(x) (((x) & 0x3) << 4)
#define FP_DENORM_MODE_DP(x) (((x) & 0x3) << 6)
#define R_00B860_COMPUTE_TMPRING_SIZE 0x00B860
#define S_00B860_WAVESIZE(x) (((x) & 0x1FFF) << 12)
#define R_0286E8_SPI_TMPRING_SIZE 0x0286E8
#define S_0286E8_WAVESIZE(x) (((x) & 0x1FFF) << 12)
#define R_SPILLED_SGPRS 0x4
#define R_SPILLED_VGPRS 0x8
#endif
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